Influence of micropile inclination on the performance of a micropile network

Micropiles are defined as small-diameter, drilled and grouted piles. They are used in groups for underpinning existing structures and as a foundation support for new structures. They can also be used in networks as a technology of ground improvement. In this case, both vertical and inclined micropiles are utilised to create a geocomposite material with both high stiffness and resistance. This paper aims at analysing the performances of a micropile network implemented in a wall configuration. The first part of the paper describes the numerical model used for the analysis of this network, and the second and third parts analyse the performance of the micropile network under lateral and vertical loads. Analysis shows that the inclination of micropiles results in an improvement of both the stiffness and the bearing capacity of the micropile network.